Step 5 of 6
Corner placement
Place the four top corners so their colours match the side centres. Look for headlights, a side whose two corners show the same colour: headlights on one side only means two neighbouring corners to swap (the T perm); no headlights, two diagonal corners (the Y perm). Headlights on all four sides: the corners are already placed, turn U to line them up and move on to the edges.
The basic situations
Hold the cube as the hint says, then apply the formula. In the app, every formula is animated on a virtual cube.
T · two adjacent corners
Headlights on one side only: the two corners on the opposite side need swapping. Turn U to put the headlights on the left, lined up with their centre, then finish with a turn of U if needed.
R U R' U' R' F R2 U' R' U' R U R' F'→ piece in placeY · two diagonal corners
No headlights: two diagonal corners need swapping. Turn U until the other two corners are placed, at the front left and the back right (their colours match the centres), then finish with a turn of U if needed.
F R U' R' U' R U R' F' R U R' U' R' F R F'→ piece in place